James f



@uiten gieten etnt @tiene Letters Patent No. 73,877, dated January 28, 18685.

IMPROVEMENT IN PRIMING METALLIC CARTRIDGES. I

@me Stimme nimm tu iu tigen lttta iatmt- :mh making part-nf tigt time- TO ALL WHOM IT MAY CONCERN:

Be it known that I, JAMES F. CRANSTON, of SpringeldHampden county, Cdmmonwenlth of Massachusetts, have invented a certain netor anduseful Improvement in GentrefFi'i-e Cartridgestif and I do hereby certify that the following is a true and exact descriptionthereof, reference being had t'o the drawings ofthe same, and letters of reference marked thereon. In the drawings- -1 Figure I shows the-shell before the insertion of the fulminnte and cover.

Figure II is a. section of cartridge as finished.V i l My invention consists of a new and improved manner of forming the rear end of the cartridge-shell, for the purpose of holding the fulminate.

I form in the rear end of the shell, before the rim is formed, as shown in Fig. I, a depression, a, into `which the fulminate is inserted, and place on the outside of ita. cover, b. The shell'is then headed, crimping the metal over and upon the cover, and fastening it in place. By this means thefulminate is thoroughly fastened in place, and a very strong Ihead formed by the arrangement ofthe metal, as shown in Fig. II. An opening, c, is left through the centre of th'e head of the shell, for the tire to communicate to the powder.

Now, having described-my'inveution, what I claim as new, and .desire to secure by Letters Patent, is- The manner of fastening in the fulminte in a. metallic-cartridge lshell, 'by'means of the cover b, attached upon the outside of the shell, snbstantially 'as-described.

` JAM-ES F. CRA'NSTON.

Witnesses:

R. F. HYDE, y EDWARD H. HYDE. 

